bug#56692: 29.0.50; scroll-bar in the minibuffer window disappears

[Po Lu]

Visuwesh <visuweshm@gmail.com> writes:

> The exact details of this disappearance varies from my Emacs config
> started as a daemon and emacs -Q.  To reproduce,
>
>         1. emacs -Q
>         2. C-x 2
>         3. Witness the disappearance.
>         4. M-:
>         5. Scroll-bar shows up again.
>         6. C-x 0
>         7. Scroll-bar shies away.

I fixed this on master but to be frank I don't know why it works, and
why this call to move_it_to in set_vertical_scroll_bar makes the scroll
bar not redeemed in inactive mini windows after redisplay_window ends:

--->      move_it_to (&it, -1, it.last_visible_x, window_box_height (w), -1,
                      MOVE_TO_X | MOVE_TO_Y);

If anyone else can figure it out, I would be very grateful.

TIA.